Gas plant.



No. 739,665. PATENTED SEPT. 22, 1903.

' H. GERDE'S.

(ms PLANT.

APPLIOATIOH FILED HA3. 22, 1901.

H0 MODEL.

UNITED STATES Patented September 22, 1903.

PATENT OFFICE.

HEINRICH GERDES, OF BERLIN, GERMANY, ASSIGNOR TO JULIUS PINTSGH,

' OF BERLIN, GERMANY.

GAS PLANT.

SPECIFICATION forming part of Letters Patent No. 739,665, datedSeptember 22, 1903.

Application filed March 22, 1901. Serial No. 52,455. (No model.)

' Power Plants, of which the following is a deheat.

scription.

' The present invention relates to gas-power plants; and it consists ofthe means, as hereinat'ter set forth, for producing, by the suctionperiod of a four or other cycle gas-motor, just sufiicient gas for theuse of the motor.

In order to render the present specification easily intelligible,reference is had to the ac.- companying drawing, showing a sectionalelevation of the plant. i

The particular object of the present invention is to produce a gas-powerplant having a constant gas-pressure and in which the generation of gasonly takes place during the suction period of the gas-engine and inexact proportion to the gas feed necessary for the said engine. In orderto attain this object, the pipe a leading to the gas-engine (not shown)is connected immediately to the pipe I), which leads through thepurifier c and condenser d to the interior of the gasgenerator e. Thegenerator (of any suitable construction advantageously for water-gas) isprovided with a water-tank underneath the grate f. The water in the saidtank being heated by the heat from the grate, and thus slowly caused tovaporize, produces sufliclent steam to generate the necessary quantityof gas for the suction period of the engine. Beneath the grate fanair-inlet opening 9 is provided, which may be adjusted to the necessarysize by any suitable means, (not shown,) so as to admit just sufficientair to the generator to retain the fire in the same at the proper glowDuring the suction period of the gasengine-i. a, the period in which thepiston draws in sufficient gas to cause theexplosionsubsequently-sufticient air and steam will be drawn by suctionthrough the grate f of the generator to enable the generation of acertain quantity of gas. The suction of the engine, however, will drawthe gas through the pipes b and a direct to the engine, so that the gas,the generation of' which is dependcut on the amount of suction of theengine,

A vertical pipe it extends upwardly from the pipe a, and over the openend of the same is arranged a small hell i, which is pressed upwardly bymeans of asuitable spring 2, preferably aided by a float ,3, so as toprevent the atmospheric air-pressure from destroying the vacuum orrarefaction required for the proper working of the plant. This generatorand regulator are subjects of my two applications, Serial Nos. 32,851and 32,852, respectively. If now gas is drawn from the generator e bythe suction period of the gas-engine, this suction action will in acertain measure influence the bell i and pull the same slightlydownward, this action being also aided by a spring 4 above the bell andof less strength than the lower spring 2. It will thus be seen that asthe lower spring is stronger than the upper one a partial vacuum ismaintained between the suction periods of the engine. As soon as thesuction ceases the bell will return to So its normal position under theinfluence of its float or spring and in so doing will draw the gasdeveloped in the generator 6 after the suction period ceased out of thesaid generator, thus preventing the generation of gasanced to retain acertain vacuum; but such 5 bell has hitherto always acted as a pulsatingdevice, the result being that a dangerously large quantity of gas wasalways present in the plant and that the subsequent gas generation wasnot regulated by the suction of the engine in any way, because theinterposed amount of gas stored entirely prevented any automaticregulation of the quantity of gas generated.

In Letters Patent of the United States No. 683,034, dated September 24,1901, I have shown and described a special form of regulator or belladapted for use in the plant made the subject of the presentapplication;

but I do not claim herein the construction of the pressure-regulator orbell, the present apand means adapted to receive the after generation ofgas from the generator, located in the connecting-pipe and tending tomaintain a partial vacuum therein between the suction periods of theengine, substantially as described.

2. In a gas plant, the combination with a gas-generator adapted togenerate gas by the suction of agas-engine, a pipe connecting thegenerator with the gas-engine and pulsating means adapted to receive theafter generation of gas from the generator, located in theconnecting-pipe and tending to maintain a partial vacuum therein betweenthe suction periods of the engine, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

HEINRICH GERDES.

Witnesses:

' HENRY HASPER,

WOLDEMAR HAUPT.

